Given a text file file.txt, print just the 10th line of the file.
Example:
Assume that file.txt has the following content:
Line 1 Line 2 Line 3 Line 4 Line 5 Line 6 Line 7 Line 8 Line 9 Line 10
Your script should output the tenth line, which is:
Line 10
Note:
1. If the file contains less than 10 lines, what should you output?
2. There's at least three different solutions. Try to explore all possibilities.
1. If the file contains less than 10 lines, what should you output?
2. There's at least three different solutions. Try to explore all possibilities.
Q.describe:use bash to print the tenth line of file.txt which is provide by the question setter.
Solution:
awk 'NR == 10' file.txt
/*
awk [-F field-separator] 'commands' input-file(s)
*/
Detail describe of awk in bash,please click in:
https://www.cyberciti.biz/faq/bash-scripting-using-awk/
Comment: this is my first blog article,if there are something wrong in the article,please point out,thanks.
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